Today's front-page headlines from Marca, AS and Mundo Deportivo.

PSG is a challenge which should be accepted

Unai Emery: We'll see what the best thing is for the team and for Jese

UE: I want PSG to be more aggressive in attack

UE: Before Barca we have the challenge of doing a lot more

Real Madrid begin the year without Ramos - he still carries a niggling injury from Japan

Atletico sign the Uruguayan Sanabria - left-sided central midfielder, youth team captain, he must wait until FIFA ban lifted

Weigl offered to Madrid

Man City and Barca also interested in Borussia Dortmund midfielder 

21 years old, 1.86m, German international, 'the new Busquets'

Jesus Vallejo: I strive every day of my life to play for Real Madrid

Trident return from holidays - Messi, Suarez and Neymar return after 3 free days

Atletico close 2016 with record number of socios - 96, 707

Voro, Valencia's cure for a 5th time - assumes manager role until June

'Being here is what I always wanted'

Ter Stegen goes into the new year with plenty of challenges and hopes to become Barcelona legend

Today sees Neymar, Messi, Suarez return to Barcelona training

New massacre in Istanbul - 39 dead

Prandelli leaves feeling fooled

Klopp wins over Pep, Mourinho defeats Karanka and Chelsea continue winning streak